题解C++

#include<bits/stdc++.h>
using namespace std;
int main(){
double a[10]={28.9,32.7,45.6,78,35,86.2,27.8,43,56,65};
int s[100];
double sum=0;
for(int i=0;i<10;i++){
cin>>s[i];
sum+=s[i]*a[i];
}
printf("%.1lf",sum);
return 0;
}